<!-- 课程发布 -->
<template>
  <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>
    <el-steps :active="3" process-status="wait" align-center style="margin-bottom:40px;">
      <el-step title="填写课程基本信息"/>
      <el-step title="创建课程大纲"/>
      <el-step title="最终发布"/>
    </el-steps>

	<div class="ccInfo">
		<img :src="coursePublish.cover">
		<div class="main">
			<h2>{{ coursePublish.title }}</h2>
			<p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
			<p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
			<p>课程讲师：{{ coursePublish.teacherName }}</p>
			<h3 class="red">￥{{ coursePublish.price }}</h3>
		</div>
	</div>

    <el-form label-width="120px">
      <el-form-item>
        <el-button @click="previous">返回修改</el-button>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import course from '@/api/edu/course.js'
export default{
  data(){
    return{
      saveBtnDisabled: false,		//保存按钮是否禁用
	  courseId: '',					//课程id
	  coursePublish: {},			//课程确认信息
    }
  },
  created(){
    if(this.$route.params && this.$route.params.id){
      this.courseId = this.$route.params.id;
      //调用接口查询确认信息
      this.getCourseInfo();
    }
  },
  methods:{
    //根据课程id查询课程确认信息
    getCourseInfo(){
      course.getPublishCourseInfo(this.courseId)
        .then(res => {
          this.coursePublish = res.data.publishCourse;
        })
    },
    previous(){
      //跳转到第二步
      this.$router.push({path: '/course/chapter/' + this.courseId});
    },
    publish(){
      //调用发布的接口
      course.publishCourse(this.courseId)
        .then(res => {
          //提示
          this.$message({type: 'success', message: '发布课程成功'});
          //跳转到list列表
          this.$router.push({path: '/course/list'});
        });
    }
  }
}
</script>

<style>
  .ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #DDD;
  margin-bottom: 40px;
  position: relative;
  }
  .ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
  }
  .ccInfo .main {
    margin-left: 520px;
    }
    .ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
    }
    .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
    }
    .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
    }
    .ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
    }
</style>
